fs/quota: erase unused but set variable warning
Local variable *reserved* of remove_dquot_ref() is only used if define CONFIG_QUOTA_DEBUG, but not ebraced in CONFIG_QUOTA_DEBUG macro, which leads to unused-but-set-variable warning when compiling. This patch ebrace it into CONFIG_QUOTA_DEBUG macro like what is done in add_dquot_ref(). Signed-off-by: Jiang Biao <benbjiang@tencent.com> Signed-off-by: Jan Kara <jack@suse.cz>
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